13705945 has 8 divisors (see below), whose sum is σ = 17942400. Its totient is φ = 9967920.

The previous prime is 13705919. The next prime is 13705963. The reversal of 13705945 is 54950731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13705945 - 2¹¹ = 13703897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13705945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124545 + ... + 124654.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^13705945 is an apocalyptic number.

It is an amenable number.

13705945 is a deficient number, since it is larger than the sum of its proper divisors (4236455).

13705945 is a wasteful number, since it uses less digits than its factorization.

13705945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249215.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 13705945 is about 3702.1541026813. The cubic root of 13705945 is about 239.3148572849.

The spelling of 13705945 in words is "thirteen million, seven hundred five thousand, nine hundred forty-five".